Music typing machine



March 17, 1953 Filed Jan. 3, 1949 R. H. KEATON MUSIC TYPING MACHINE4'Sheecs-Sheet l INVENTOR. ROBERT H. KEATON ATTORNEY March 17, 1953KEATON 2,631,712

MUSIC TYPING MACHINE Filed Jan. 3, 1949 4 Sheets-Sheet 2 IN VEN TOR.

ROBERT H, KEATO/V ATTORNEY March 17, 1953 R. H. KEATON MUSIC TYPINGMACHINE 4 Sheets-Sheet 5 Filed Jan. 3, 1949 IN VEN TOR.

m U m N KW R r l m R \lllllllllll 8s Illlllllllllllll March 17, 1953 R.H. KEATON 2,631,712

MUSIC TYPING MACHINE Filed Jan. 3, 1949 4 Sheets-Sheet 4 I INVENTOR.ROBERT H. KEATON ATTORNEY Patented Mar. 17, 1953 UNITED STATES MUSICTYPING MACHINE Robert H. Keaton, San Francisco, Calif.

Application January 3, 1949, Serial No. 68,967

10 Claims.

This invention relates to an improved typewriter adapted to type musicalnotes and characters on musically staifed paper.

A- principal object of the present invention is to improve generally onthat type of music typing machine which forms the subject matter of myU. S. Patent No. 2,047,690, dated July 14, 1936.

In typing musical characters or figures, provision must be made in thetypewriter to space the characters both longitudinally and laterallywith respect to the paper, and in view of the fact that musicalcharacters are written on a staff comprising five closely spaced staiflines and four spaces between the lines, it is essential that provisionbe made to print the musical notes and characters in exact position uponthe paper. Another object, therefore, of the present invention is toprovide means in a music typewriter for shifting the keys thereof bothlaterally and longitudinally with respect to the paper and to providemeans to indicate the exact typing locus on the paper whereat the nextmusical character will betyped. 1

Another principal object and advantage of the present invention is toprovide in a music typewriter a novel means for shifting a typewriterribbon into operative position only upon depression of a typewriter keyto permit normal visual access to the particular point or typing locuson the paper whereat the next note will be typed.

Another object is to provide in a music typewriter a novel keyboardarrangement whereby one keyboard is adapted to type one class of musicalcharacters, such asbar lines and ledger lines, which, when repeated,always appear in the same relative spaced positions with respect to thelines comprising a chosen staff in a direction longitudinally of thepaper and a second keyboard adapted to type another class of musicalcharacters, such as the notes, rest signs and sharp and flat signs etc.,which may, when repeated, appear in various spaced positions withrespect to the lines cornprising a chosen staff in a directionlongitudinally of the paper. The particular advantages at-. tained inemploying such a novel keyboard arrangement will be more fully explainedherein-.

after. a

Another object is to provide a novel and efii+ cient means for mountinga type bar in a frame of a typewriter.

Other objects of the present invention are to provide a music typewritercapable of typing a great many musical characters on a sheetof staffedpaper, which is compact in size, rugged in construction, whichrequiresrelatively few mal 2 chined parts and which is relatively inexpensive tomanufacture.

Other advantages and objects of the present invention will becomeapparent upon reading the following specification and referring to theaccompanying drawings in which similar characters of reference representcorresponding parts in each of the several views:

In the drawings:

Fig. l is a plan view of the invention.

Fig. 2 is an enlarged fragmentary sectional view taken on line 2-2 ofFig. 1 showing some of the parts partly broken away.

Fig. 3 is an enlarged fragmentary sectional view taken on line 3-3 ofFig. 1.

Fig. 4 is a plan view of the base plate and lower carriage members andshowing other parts of the typewriter partly broken away.

Fig. 5 is an enlarged fragmentary view partly in section taken on line55 of Fig. 1 and showing in detail a part of the ribbon shiftingmechanism.

Fig. 6 is an enlarged fragmentary view showing the operation of thatportion of the ribbon shifting mechanism illustrated in Fig. 5.

Fig. 7 is a rear elevational view of the invention. a i

Fig. 8 is a fragmentary view in perspective showing the manner in whicha type bar is supported in a frame.

Construction and operation of the base plate and -movable paper holderThe base plate, indicated generally at A, in the drawings, comprises aflat table part i I, having attached to the bottom thereof and extendingtransversely thereof end support members I2 and i3 and a. centraltransverse support member H5. Extending transversely across the top ofthe table part I I are a front trackway i5 and a rear trackway it, whichsaid latter element is mounted adjustably movable in a direction towardand away from thesaid front trackwa'y by means of adjusting screws I!and I8. Extending upwardly above the top of the rear trackway l6 andrearwardly thereof is a. notched bar or ratchet-i 9 which is supportedat its opposite ends by ad- J'ustable screw assemblies I! and i3.

Extending lengthwise of base plate A and positioned to the leftand'slightly below the table part I i is a trackway. 25 which isprovided throughout about one half of its length thereofv with aplurality of equi-distantly spaced notches or grooves 22. The distancebetween adjacent notches 22 may be made to correspond exactly to thedistance between adjacent staffs on the sheet of paper on which thecomposition is to be typed, and for reasons which will appearhereinafter.

A paper holder, indicated generally at B, comprises more specifically anelongated angle bar 23, a laterally projecting handle member 24 and aplurality, preferably two, of paper spring clamps 25. Attached to theunderside of angle bar 23 and depending therefrom are a pair of rollers26 and 21, which, in turn, are suitably flanged at their ends to engagetrackway 2| of base plate A.

In operation, the sheet of staff paper, indicated generally at C, may besecurely clamped to angle bar 23 by clamps 25 in such manner that theedge of the paper is in parallel alignment with the edge of the saidangle bar. Upwardly extending lugs 28 may be provided at each end of theangle bar to serve as stop mean and against which the edge of the papermay be moved to aid in aligning the paper parallel to the edge oftheangl bar as aforesaid The paper holder and the staffed sheet of paperC'maybe moved longitudinally with respect tothe table part II byappropriatemanualmovement of'handle 2d which isslidablysupported byabar' 2&-

which is provided on thebas'e' platefor this pur pose. Roller 26 isadapted to engage and nest into any one of the notches" 22 provided onbar 2|, and as has hereinabov'ebeen pointed out the said notches may bespaced from each otherat' Construction and operation of th lowercarriage and lateral spacer mechanism The lower carriage of thetypewriter, indicated generally at D, comprises more specifically arectangular frame consisting of a pair of parallel sidetrackways 32" and33 and a pair of end connecting bars 34 and 35.

traokway I5, and the underside of end piece 35 is provided with asuitable arcuate bearing surface which is adapted to slidably engagetrackway 16.

Referring now particularly to Figs. 1 and '7, numeral 31 indicates anupwardly extending boss to which is pivotally mounted adjacent its upperend a bifurcated bell crank lever 38' which, in turn, is provided withan: elongated actuating arm 39. The lower end of the bell crank lever 38has pivotally attached thereto a pawl H which is adapted to engage theteeth of ratchet H]. A pawl release bar 42 is pivotally attached to thetop of end bar 35- and is held normally in inoperative position by meansof a coil spring is. A suitable coil spring 44' having its opposite endsattached to an arm of bifurcated bell crank 38' End bar 34* is providedwith a roller 36 which is adapted toroll alongv and to bell crankadjusting screw i5, respecto abut against the lower arm of hell cranklever 38 and limit its movement thereby.

In operation, when arm 39 is depressed (by a mechanism which willhereinafter be described in more detail), the lower arm of bell cranklever 33 is moved to the left causing pawl Al to bite into a tooth ofratchet i9 and force carriage frame D to the right along trackways l5and 15. The distance. between two adjacent teeth.v on ratchet l3 may beconveniently regarded as-the equivalent or one lateral space on thetypewriter, and it is evident that the number of spaces that thecarriage D will be moved to the right upon a singledownward stroke ofarm 39 is dependent upon thelength of that downward strokei. e.,

the greater the distance that arm 39 is moved downwardly; the greaterwill be the number of ratchet teeth that pawl 4! will move over. If itis desired to move the carriage frame D to the left (referring now toFig. 1 particularly) an operator needonly grasp the release bar. 42 andmove it to the left which will cam pawl 4! upwardly out of engagementwith ratchet I5v and permit the carriage to be movedas: far'to the leftas desired over' trackways. l5 and It. Upon release of bar 42, pawl 41.willagain drop into engagement with'ratchet l Qand'spacing to the rightmay be accomplished by successiveactuation of arm 39 ashereinabovedescribed.

Construction. and operation of theupper carriage and. longitudinalspacer mechanism Referring now particularly to Fig, 5 in the drawings,the. upper. carriage, indicated generally at L, i supported movablyalong-trackways 32 andti oflower carriage?) by means of a' pluralityofroll'ers (preferably four). which are identified.

by the numeral 59;. More specifically upper carriage E comprises end bar48; arcuate dial QT, arcuate type bar' frame" 48 and connecting bar 39;The inner'top: edge of dial 4? is preferably markedoff atgiveniintervals with straight lines or arrows or other indicia, such asindicated at 55, whereas the. outer edge of'dial 41 is provided with aplurality'ofinotchesi 52. Generally, 1- prefer to make the five: centerlines 5| black and make the remainingilines provided on either side ofthe center lines: a different color, such as red for example. Inaddition; I. prefer to provide twice as many notches 52 as there are.lines or indicia 5i and to arrange. the notches in such manner that onenotch is positionedzopposite each line 5i and a second notch is providedopposite the-space between; adjacent lines 5 I; The reason for thispreferred arrangement. of parts will be more fully describedhereinafter.

Th longitudinal spacingmechanism-i. e., the mechanism employed to moveupper carriage E longitudinally with respect to; the table part and thepaper supported thereon-is indicated gen.- erally' at F and comprisesmorerspecifically an elongated lever arm 53 pivoted as. at 54 toconnecting bar 48' anditerminating at one of its ends in a pointer. asat 55. The opposite end of lever arm 53 is disposed slidably in a sleeve56 which, in turn, is pivoted as. at 51 to type bar frame 48?. Attachedto the end of lever arm 53 adjacent the pointer end thereof'i's aU-shaped frame 59 which carries a depending wheel or: roller 51 on theinnerside thereof and knob 62 on the. outer side thereof.

In'operation, knob 62 may be employed to move lever arm 53 arcuatelyover dial 4! until pointer 55 is indesired registry with one. of themarkings 5i. Accurate alignment betweenthepointer and one of the markersmay be rapidly accomplished another. It is evident that movement oflever arm 53 will, because of its pivotal connection 54 with uppercarriage E and its slidable connection with fulcrum sleeve 56, causeupper carriage E to move correspondingly in the direction in which thelever arm is moved and in a direction'longitudinally with respect to thetable part of base plate A.

In connection with the construction and operation of the upper carriageand longitudinal spacer mechanism, it is noted that the markings are sospaced, and the spaced mechanism F is so arranged, that movement ofpointer 55 over dial 4! a distance of one marking will cause the uppercarriage to move longitudinally with respect to the paper a distanceexactly equal to the distance between adjacent staff lines on the paper.In view of the fact that there are two notches 52 for each marking 5i,movement of lever arm 53 from one notch to the next will cause the uppercarriage to be moved longitudinally with respect to the paper a distanceequal to the distance between a staff line and the center of the spaceexisting between said staff line and an adjacent staff line. Moreover,the reason I prefer to make the center five markings 5| on the dial adifferent color than the remaining markings is that the center fivelines may be deemed representative of the five lines within a staff onthe paper, and so long as the lever arm 53 is'confined in movementwithin the center five black markings, an operator is assured that thenext typed character will be printed within the limits of the staff onthe paper.

Construction and operation of the keys, the type bar frame and. keyframe -The keys and type bars of the present typewriter are divided intotwo separate and distinct groups, indicated generally at J and K. Thekeys of group J in the drawings are mounted in an arcuate frame 48 whichis attached-immovablywith respect to lower carriage D, whereas the keyswhich comprise group K are mounted in an' arcuateframe 48 attached toupper carriage E and are, therefore, movable with respect to the keys ofgroup J and to lower carriage D. Each of the type bar frames is providedwith an arcuate key frame 63 supported in vertical alignment with therespective type bar frames by means of post members 65. A plurality. ofin-- wardly projecting lugs 65 are provided around the inner perimeterof members 48 and 48 and each inwardly projecting lug 65, in turn, isprovided-with an upwardly facing -shaped slot, such'as indicated at 66.A plurality of small spring clips, such as are indicateda-t 61 in Fig.8, are attached at their inner ends to the inner sides of members 48 and48 and are arranged in such manner that one such spring clip overlieseach of the said V-shaped notches 61. V i 5 The keys of groups K and Jare formedidenti cal with one another, andeach key comprises anindex-head 68 toindicate the musical character which that particular keyis adapted to type, and

a vertical stem 69 mounted slidably in a hollow boss I0 and which saidstem is bent at right angles adjacent its bottom terminal end as at I l.It is noted that the keys which are arranged within the inner row ofeach group have their stems bent outwardly, whereas the keys comprisingthe outer row of each group are arranged with their stems bent inwardly.

Each key is also provided with a suitable coil spring 12 mounted aroundits stem 69 which is disposed between the top of frame member 63 andindex head 68 to normally maintain the key in upwardly spring biasedposition. A link member 13 is connected pivotally at one of its ends toa bent end of stem II of each key and is connected pivotally at itsopposite end to a type bar 14 adjacent the bottom end thereof. Each typebar, in turn, is formed with a printing head having a selected typingcharacter 15 provided thereon which is adapted to strike down upon aninked typewriter ribbon to type the character upon the paper locatedbeneath said ribbon. Each type bar is provided at its bottom end with apressed in pivot pin 16 which is adapted to engage and nest intoV-shaped slots 66 in a manner which will more fully appear.

The distance between adjacent lugs 66 of frames 48 and 48 substantiallyequals the width of the bottom end of a type bar 14. In assembling thetype bar to frame 48 or 48 the bottom end of the type bar is insertedbetween a pair of adjacent lugs 56 so that opposite ends of pivot pin 16of the type bar engage and nest in adjacent V-shaped slots 66 of thelugs and are held in nested position by spring clips 61. I have foundthat the round pivot pin in combination with the V-shaped slots providea highly satisfactory pivotal connection about which a type bar 14 canswing. An advantage of such an arrangement of parts is that a minimum ofmachining is required to make a pivot bearing which will permit thetypebar to swing downwardly in a straight line without wavering orwobbling to the right or left during a typing stroke.

In operation, depression of the index head 68 of a key will cause thestem thereof to move slidably in boss 16 andby virtue of the linkconnection 13 between the stem and the type bar 14, the'type bar will becaused to swing around its pivotal axis I6 whereby the printing head ofthe type bar will strike the typewriter ribbon and impress a characteron the paper beneath said ribbon. When pressure is released from theindex head, coil spring 72 will urge both the type bar and the ,headupwardly and back to their original positions.

Arcuate frames 48 and 48 comprise a segment of, a,;cir cle having acommon diameter and the length of each of the type bars (as measuredfrom. pivot pin to printing head) corresponds to the length-of theradius of said common circle. Because of this arrangement of parts theprinting heads carried by the said type bars mounted in frame. 48. will,uponactuation, swing downwardly to a common printing position or pointlocated centrally .withrespect to the frame. The printing heads providedon the type bars mounted in frame 48 are preferably offset, as indicatedat l48 in suchmanner that the said printing heads 7 will not move to acommon centrally locatedprinting position or pointbut the offset headsare-preferably so constructed as to move to respectiveprinting'positionswhich are all located tudinal; axis of. the paper.

It should be further pointed out, however, that the centrally; locatedprinting position. to which type bars supported in frame. 418 all; moveis also located along the common line paralleling the longitudinal axisof the paper and along which said line are located the respectiveprinting positions of the type bars. mounted in frame 48* as aforesaid.The reason for this preferred arrangement of parts and the purpose ofmaking the keys and type bars of group J immovable with respect to.lower carriage D and the keys and type bars of group K movablelongitudinally with respect tothe paper and with respect. to lowercarriage D, are as follows:

In writing music certain of the musical; charactors and particularly theclef signs, the bar lines which indicate the end of a. measure, and theledger lines which appear above and below the staff, are always placedin the same spaced position with respect to, the lines which comprise aparticular stair in a direction longitudinally of the paper. Thus,musical characters of this type are adapted to be printed by thetypebars mounted in frame 48a; for, regardless of, movement orpositioning of longitudinal spacer mechanism- F, eachprinting head willalways and repeatedly print its respective; character in the same spacedposition with respect to the lines comprising a chosen staff in adirection longitudinally of the paper. As. previously explained theprinting heads of these type bars are peculiarly offset so that therespective printing positions of each are located along a common linedrawn parallel to the longitudinal axis of the paper and so that the.characters printed by the respective heads will appear above or belowone another on or with respect toa chosen stair.

With regard to perhaps the majority of musical characters, including thenotes, sharp and fiat signs, rest signs, and many others, the charactersmay appear repeatedly in various spacedpositions with respect to thelines comprising a staff in a direction longitudinally of the paper.Thus charactors of this latter type are printed on my machine by thetype bars mounted in frame 43 which may be moved to various spacedpositions with respect to a chosen staff both longitudinally andlaterally oi the paper.

Construction and operation of the lateral spacer mechanism Provided onend member 46 of the upper'c'arriage are a pair of upwardly extendingposts 11 to rigidly support thereon U-shaped member; 78. Pivotallyattached as at 19 to opposite ends of U-shaped member i8 is U-shapedspacing barmedially of spacer bar 8! by a common pivot pin.

88, and said keys are adapted to overlie, respectively, adjusting screws84 and 85. Rigidly; attached to spacer bar. 8| adjacent; the pivot point88 is a central key 853.

Rotatably' mounted around. adjusting screw 85 is an annular disc 9%which may be provided with a plurality of. stop lugs .92 which projectup:

Rigi'dly attachedhas been moved to. such an extent as will cause lowercarriage D to move laterally to the right a wardly frorndisalll todifferent heights. Disc 5.0

may be adjustably rotated around screw 85. in. such manner that. one ofthe lugs is positioned.

directly beneath and alignment with the bottom of spacer bar. 8,!

The above described arrangement of. parts makesit possible to, obtainatleastthree different lateral spacings on the machine by merelyselectively depressing either one of the keys. 8.6,.

' latter movement will, in turn (as has been. in-

dicated heretofore), determine the number of spaces, or distance thatcarriage D will be moved laterally to the right. Preferably, stop screw84 is adjusted to a height that will permit key 8.6 and bar, 8! to movearm 33 downwardly only sufiiciently far to. move carriage D to the rightone space. Similarly, I prefer to adjust stop screw 8.5 to a heightwhich will prohibit further depression of key ill and bar 8| after thearm distance of two. spaces. Depression of key 8.9 will cause the spacerbar to move downwardly against one of the stop lugs 92 on disc 9% tolimit lateral movement of carriage D to three, four or five spaces,depending on which of the lugs has been adjustably aligned beneath thespacer bar as hereinabove mentioned. It is noted that when spacer bar atis depressed by pressing down upon key so adjusting screws 84. and 8.5will strike against the bottoms of keys 8 S and 8?, but be-' cause oftheir pivotal mounting at 83, the keys will be forced upwardly and willnot inhibit further depression of the spacer bar.

Construction and operation of the ribbon. winding and feedingmechanisms. and ribbon shifting mechanism A bracket 94 extends upwardlyfrom bar 83 and is provided with axle pin 93 to support rotatablythereonratchet wheel 95 and attached ribbon winding reel Q1 Lever arm $6 isalso rotatably mounted on axle 93 and is provided at one end with anescapement slot 98 and is prop Support member Q9 extends upwardly fromtype, bar frame 48 to support adjacent its upper end thereof by means ofpivot pin lll, L-shaped arm H32. Extending outwardly from the shorterleg .of l.-shaped arm :82 is an axle pin I03 to rotatably support aconventional typewriter ribbon unwinding reel ids, and dependingdownwardly from arm I32 is rod M5 which supports agts bottom end aribbon guide its and a pointer U-shaped frame I 56 ispivotally hinged tobars 82 and 63 by means of an axle pinpldfi and, attached to the ends ofthe extending arms of U-shaped frame Hi8 by screws N39 is a ribbonshifting actuating ring Hi! which has an armate portion thereof arrangedand constructed to conform incontour to the type bar and key framemembers 43 and 53. Ring I I0 is normally urged upwardly by action ofspring Ho against the bottoms. of the bent. stem portions of the keyswhich comprise group K and in such manner member N38 to pivot about pinI08? about its pivotal-axis I08 pression of any one of the keyslocated'nearest bent stem portions will bear against the ring to move itdownwardly causing U-shaped frame A segmental ring or engaging memberIII somewhat similar in construction to ring H is mounted slidably uponarm H2 of U-shaped member N38, and is held normally upwardly biasedagainst the bent stems of the keys of group J. The reason for makingsegmented member III slidable with relation to arm H2 is that when theupper carriage E which carries U-shaped member 563 is movedlongitudinally with respect to the keyboard of group J, member III willremain in contact with the bent portions of the keys comprising thatgroup. Upon depression of any one of the keys in group J, the bentportions thereof will Referring again to Figf it is seen that the longerarm of L-shaped member I02 connects with ring H0 by a linkage comprisingmember "H3 depending from me'mberlt2 and pin H4 whichprojects frommember H3 and engages escapement slot II5- provided in the upper end ofsupport member H6, which said latter member is rigidly mounted to ring'lI0;

In operation, when any one of the keys 68 is o depressed downwardlyagainst either ring H0 or segment III, U-shaped frame I08 is causedtoswing downwardly about its axis I08. Simultaneously, member H6 carriedby ring H0 will move downwardly, and because of the connection betweenpin H4 and escapement slot H5, L- shaped member I02 will swing about itspivotal axis IOI, and this latter movement, in turn, will cause rod I05carrying ribbon guide I06 and pointer It! to swing to the left withrespect to the paper (or to the right when viewed from the front asindicated in Fig.6). An adjustable stop screw I20 may be provided toabut against the side of rod I05 to limit the extent to which the ribbonguide and ribbon may move to the right with respect to the paper.

After ring H0 and member H6 have been moved downwardly'upon depressionof a key to the approximate position indicated in Fig. 6, pin H4 willdisengage from notch H5 to permit further depression of ring H0, but pinH4 will, by virtue of its slidable contact against edge H8 of member H6,continue "to maintain the ribbon cocked to the left with respect to thepaper, as

above noted. In this respect it is noted that the distance that notch H5is moved downwardly out of engagementwith pin H4 is largely dependentupon which one of the keys is depressed against ring I I0 or segmentmember I I I to cause U-shaped member I08 to swing downwardly Forexample, de-

pin I08 will, according to commonlyunderstood i'leverage' principles,cause member I I6 to move downwardly further than would be the case upondepression of one of the keys located further away from pivot I08.

-' As heretofore'noted, lever arm 95"is provided with a V-shaped cut outand escapement notch 98 that is normally in engagement with a pin I I1carried by ring H0.

When' ring H0 is swung arcuately downwardly upon depression of any tionto wind the ribbon off of reel Ind and on to reel 92. Although notabsolutely essential to the operation of my device, I generally preferto provide a second pawl H9 which is pivotally suspended from element 94for the purpose of engaging ratchet wheel 95 to lock said wheel againstbackward rotation.

The overall operation of the typewriter is as follows: A sheet ofmusically staffed paper is clamped to holder B with its opposite sideedge inserted between guides 29 and 3| and the table part of the baseplate. The holder B together with the paper may be moved longitudinallyalong trackway 2I until the center of the staff which is to be typedupon is brought within close proximity of pointer I81. Preferably theadjustable spacer means F should be positioned so that pointer directlyoverlies and registers with the center mark or point on dial 47.Adjustable screws I8 make it possible to move rear trackways I5 and theentire machine supported thereon in such manner that the end of pointerI07 is directly aligned with or points to the middle of the centerlineof the chosen staff when pointer 55 ofrthe longitudinal spacingmechanism has been centrally positioned with respect to dial 47, asabove suggested. Once the typewriter has been adjusted with "respect toone staff on the paper in the above manner, it is only necessary to movepaper holder bar 23 by means of handle 24 from one notch 22 to anotherin order to shift the paper longitudinally from one staif to another byvirtue of the fact that the distance between adjacent notches 22 equalsthe distance between adjacent staffs on the paper.

The construction of the ribbon shifting mechanism, above described, is,such that the pointer I0! normally indicates: the central printingposition of the type bar members mounted in frame 48 which said positionor point, it will be recalled, is located along a common line drawnparallel to the longitudinal axis of the paper and along which said lineare also, located the several re spectiveprinting; positions of the typebars mounted in frame 48*. Because the ribbon shifting mechanismnormally, maintains the ribbon to the right of the typing locus(and,therefore, to

therightof the common longitudinally projected shifted to the left toalign itself between the printing head'of a type bar and the indicatedis located.

Notches 52 which are engaged by roller BI on the longitudinal spacermechanism F are spaced at such intervals that movement of roller 6| adistance of one notch will correspondingly cause pointer I01 to move onedegree up or down the scale or one half the distance between twoadjacent staff lines on the paper. All lateral spacing to the right onthe present typewriter is accomplished through manual'operation of thespacer bar 8| having keys 86, 81 and 89, in a manner above set forth.The degreeor amount of lateral spacing accomplished on each depressionof spacer bar 8| is dependent upon which of the spacer keys is struckand dependent also, of course, on the adjustment which has been made onthe screws a l and 85 as well as on the position of disc 90. writingmusical passages, such as cadenzas or grace notes, it is generallydesirable to provide a relatively small lateral space between successivenotes along the staff, whereas on the other hand, when a musicalaccompanipeated in the same spaced positions with respect to the linescomprising a stall in a direction longitudinally of the stafied sheet ofpaper. Such characters comprise, among others, the various f ledgerlines which are always placed the same distances above or below thestair, and the bar line '(to indicate the end of a measure) which alwaysappears as a "line perpendicular to the staff line and which connectsthe top and the 1 bottom lines of the stafi. An obvious advantage ofsuch an arrangement or parts is that an oporator, when he desires totype characters of this latter type, need not pay attention to the"position of the longitudinal spacer mechanism F when he depresses anyone of the keys of group J.

Although I have described my invention in some detail by way ofillustration and example and for purposes of clarity or understanding,it is understood that c'ertain'chan'ges and modifications may be madeand'p'ractic'ed With'in'th'e scope of the invention and the appendedclaims.

1 claim:

1. In a music typing machine the combination comprising a base platet'osupport a sheet of musically "staffed paper thereby, a first carriagemounted movably laterally with respect to said base plate, a secondcarriage mountedcn said first "carriage "and movable longitudinally withrespect to said first carriage and said base plate, a first keyboardmounted on said first carriage and having individually movable typingmembersto type musical characters upon a said sheet b'f paper, and asecond keyboard mounted on and movable with said second carriage andhavf ing a plurality of individually movable typing member's -to typemusical characters on a said sheet o'fpap'er, the said individuallymovable typin'g members comprising said first keyboard arranged to typemusical characters. of the class which when repeated always appear inthesame spaced positions relative to the several lines which comprise -astaff in a direction longitudinally of a said stafied sheet of paper,the individually movable type members comprising said second keyboardarranged to type musical characters of the'class which may appearrepeatedly in various spaced positions relative to the several lineswhich comprise a staff in a direction longitudinally of said staffedsheet of paper.

2. In a music typing machine the combination comprising a base plate tosupport a sheet of musically staffed paper thereby, a first carriagemounted movably laterally with respect to said base plate, a secondcarriage mounted on said first carriage and movable longitudinally withiespect'to said first carriage and said base plate, a'first keyboardmounted on said first carriage and having individually movable typingmembers to type musical characters upon a said sheet of paper, a secondkeyboard mounted on and movable with said second carriage and having aplurality of individually movable typing members to type'musicalcharacters on a said sheet of paper, the said individually movabletyping members comprising said first keyboard arrangedto type "musicalcharacters of the class which when re-' peated always appear in the samespaced 'positions relative to the several lines which comprise a staffin a direction longitudinally of a said staff-ed sheet of paper, theindividually movable type members comprising said second keyboardarranged to type musical characters of the class which may appearrepeatedly in various spaced positions relative to the several lineswhich comprise a staff in a direction longitudinally of saidstaiied'sheet of paper, means to'support an inked ribbonlongitudinally/"of said base plate and said paper between said paper andsaid type members of said first and second keyboards, and ribbonshifting means associated with said last named means and said first andsecond keyboards to maintain normally said ribbon out of typingalignment with respect to the typing members of said first and secondkeyboards and to move automatically said ribbon into typing alignmentwith respect to said typing members upon movement of any one of saidmembers to type 'a musical'character on said "paper.

3. In a music typing machine the combination comprising a'base'plate'tosupp'ort a sheet of'm'u- "sically staffed paper "thereby,a first carriage mounted movably laterally with respect to said baseplate, "a second carriage 'mountedfon said first carriage and movablelongitudinally with respect to said firstcarria'g'e an'dsaid base plate,a first keyboard mounted on said first carriage and having individuallymovable'typing members to type musical'chara'gters upon a said sheet 'ofpaper, "a second keyboard mounted on and movable with said second'carriage'and having a -plurality of individually movabletyping'm'embers to type musical characters on a said sheet of paper, thesaid individually movable typing members comprising said first keyboardarranged to type 'musical 'charact'ers'of the class which when repeatedalways appear in the same spaced positions relative to the several lineswhich comprise a staff in a direction"longitudinally of a said stafiedsheet of paper, the individually movable type members comprising saidsecond keyboard arranged to type musical charac'ters'oi the'class whichmay appear repeatedly in various spaced positions relative to theseverallines which comprise a staff in a-direction longitudinally-'ofsaid staffed sheet "of paper, the individually "movable type memberscomprisingsaid first keyboard arranged to move individually 'torespective printing positions located along a common linedrawn parallelto the longitudinal "axis of 'said supported sheet of paper, the'typemembers comprisingsaid keyboard r ed to move individually to a commonprinting point located along said common line, a ribbon guide to supportan inked ribbon longitudinally of said base plate 'an'd'said paperbetween said typing members and said paper, and ribbon shifting meansassociateii' with said individually movable type members ofsaid firstand second keyboards and said ribbon guide to maintain norma'lly sa'id ribbon shifted to a position laterally removed from 's'a'id common lineand to shift upon actuation of one =o' f said typing members said ribboninto ty pin'g alignment with respect to said common line andsaidprinting point and said printing positions located along said commonline.

4. In a music typing .rmachine the combination comprisinga base plate'tosupportdzhereby 'a'sheet of musically stafied paper, a firstarcuateztrame supporting pivotallya plurality of individually movabletype-barsmounted above said basezplate and movable laterallywith-respect thereto,'a-sec- 0nd arcuate frame supporting pivotally aplu- 13 rality of individually movable type bars mounted above said baseplate and movable longitudinally but not laterally with respect to saidfirst frame, said first and second arcuate frames each comprising asegment of a circle having a common diameter, each of the said type barssupported pivotally by said first and second frames having a lengthsubstantially equal to the radius of said common circle, a printing headprovided at the free end of each of the said type bars supported by saidfirst frame, the printing heads of the said type bars supported by saidfirst frame being offset with respect to one another and arranged andconstructed to swing pivotally downwardly to individual printingpositions, all of said printing positions being located along a commonline drawn parallel to the longitudinal .axis of said paper, and aprinting head provided on the free end of each of the said type barssupported by said second frame and arranged and constructed to swingpivotally downwardly to a common printing point located along saidcommon line, the said printing heads provided on the said type barssupported by said first framev arranged to type musical characters ofthe class which when repeated always appear in the same relative spacedpositions with respect to the lines comprising a staff in a directionlongitudinally of said sheet of staffed paper, the said printing headsprovided on said type bars supported by said second frame arranged totype musical characters of the class which may appear repeatedly invarious spaced positions relative to the lines comprising a staif in adirection longitudinally of said sheet of staffed paper.

5. A music typing machine according to claim 4 wherein indicating meansassociated with said second frame is provided to normally indicate onsaid paper the location of said common printing point and said commonline.

6. A music typing machine according to claim 4 wherein there is provideda ribbon guide to support an inked ribbon longitudinally of said baseplate and a said supported sheet of paper between said paper and saidtype bars, and ribbon shifting means associated with all of said typebars to shift laterally upon actuation of any one of said type bars saidribbon into typing alignment with respect to said common line and saidprinting positions and printing point located along said common line.

'7. In a music typewriter the combination comprising, a base plate tosupport thereby a sheet of musically staffed paper, a first framesupporting a plurality of individually movable type bars mounted abovesaid base plate and said paper, a second frame supporting a plurality ofindividually movable type bars mounted above said base plate and saidpaper, said first frame mounted for movement toward and away from saidsecond frame, type bar actuating members to move individually each ofsaid type bars to a printing position, the printing positions of all ofsaid type bars being located along a common line, a ribbon guide tosupport a ribbon between said paper and said type bars, a ribbonshifting member having parts thereof in normal engagement with the typebar actuating members which are adapted to actuate the type barssupported in said first frame, an engaging member mounted on said ribbonshifting member and arranged for relative slidable movement with respectthereto in the direction of movement of said first frame toward and awayfrom said second frame, said engaging member being in normal engagementwith the type bar actuating members which are said ribbon guide, saidribbon shifting member,

said engaging member, and said link means to shift upon operation of oneof said type bar actuating members said ribbon from a first positionremoved from alignment with respect to said common line to a secondposition whereat said ribbon is placed in printing alignment withrespect to said common line and said printing positions locatedtherealong.

8. A music typing machine comprising a base to support a sheet ofmusically staffed paper thereby, a plurality of typing members mountedabove said base and said paper, depressible keys to move individuallysaid typing members toward said paper, means to support an inked ribbonin a first position longitudinally of said paper be tween said typingmembers and said paper, means associated with said ribbon supportingmeans to indicate the typing locus on said sheet of paper whereat thenext character is to be typed, and means associated with said keys toshift automatically upon depression of a key said ribbon from said firstposition laterally into typing alignment between a typing memberactuated by said key and the typing locus of said sheet of paper wherebysaid typing member will strike against said ribbon and print acharacter'at the typing locus on said paper and to shift automaticallyupon release of said key said ribbon back to said first position whereatthe typing locus on said paper and the space above and below said typinglocus remains visible.

9. A music typing machine comprising a base to support a sheet ofmusically staffed paper thereby, a frame mounted above said base andsaid sheet of paper, a plurality of typing members pivotally supportedby said frame, depressible keys to move individually said typing memberstoward said sheet of paper, a ribbon guide attached pivotally to saidframe to support a ribbon in a first position longitudinally of a saidsupported sheet of paper between said paper and said frame, a ribbonshifting actuating member mounted on said frame movable with saiddepressible keys, a link to connect said ac-- tuating member to saidribbon guide, means associated with said ribbon guide to indicate thetyping locus on said sheet of paper whereat the next character is to betyped, and means, including said actuating member and said link, to moveupon depression of a key said ribbon guide about its pivotal axis in adirection to automatically shift laterally said ribbon from said firstposition into typing alignment between a typing member actuated by saidkey and the typing locus on the paper, whereby said typing memberstrikes against said ribbon to print a character at the typing locus onsaid paper and to shift upon release of said key said ribbon back tosaid first position whereat said typing locus normally remains visible.

10. A music typing machine comprising a base to support a sheet ofmusically staffed paper thereby, an arcuate frame mounted above saidbase plate and a sheet of paper supported thereby, a plurality of typemembers pivotally supported in row formation by said arcuate frame andarranged to swing arcuately downwardly tc- 15 Ward a sheet of "papersupported by said basedepressible keys sl'idably mounted in said frameto move individually said typing members toward said sheet of paper, aring pivotally mounted on said frame and having portions adjacent thefree end thereof in normal engagement with each said depressibl'e key, aribbonguide mounted pivotally to said frame to support an inked ribbonlongitudinally of said sheet of paper between said frame and said paper,a pointer on said ribbon guide to indicate the typing locus on saidpaper whereat the next character is to be typed, a pin projectingoutwardly from said ribbon guide, an escapement slot provided in saidring adjacent the free end thereof to normally engage said pin, means tonormally maintain said ribbon guide and said ribbon in a positionremoved from said typing locus whereby said typing locus is 'visible,and means including said ring, said escapem'erit 16 slot, and said pinto move automatically upon depression of one of said keys said ribbonguide pivotall y about its axis to a position wh'ereat said ribbon isshifted into typing alignment between a type member actuated by said keyand the typing locus on said paper.

ROBERT H. KEATON.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 489,871 Merritt Jan. 10, 1893671,186 Dukes Apr. 2, 1901 810,202 Hagerstrom Jan. 16, 1906 1,251,922Rivera Jan. 1, 1918 2,047,690 Keaton -.1 July 14, 1936

